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Re: Debugging a process that does fork on Intel Linux
- From: Daniel Jacobowitz <drow at mvista dot com>
- To: Datoda <datoda at yahoo dot com>
- Cc: gdb at sources dot redhat dot com
- Date: Wed, 21 Aug 2002 15:18:32 -0400
- Subject: Re: Debugging a process that does fork on Intel Linux
- References: <20020821191135.1896.qmail@web11201.mail.yahoo.com>
On Wed, Aug 21, 2002 at 12:11:35PM -0700, Datoda wrote:
> Hi,
>
> GDB has the concept of a catchpoint to catch a
> fork syscall in the debuggee. Alas, it doesn't work
> (yet) on intel linux. I put a little thought in it and
> thinks that what's missing is a kernel support for
> putting the parent and the child processes in a
> stopped state when the fork syscall is complete. At
> that point, the debugger can then attach to the child
> process and bring it under control.
>
> I was wondering if such a kernel support exists?
> If not, is there a plan for adding it? Or are there
> other ideas for catching forks on Linux? TIA.
I agree. I finished the kernel support last week, coincidentally. I'm
trying to get comments on it on linux-kernel before I port it to 2.4
and post the GDB bits (which work, but need some cleaning).
It may be a month or two. When I get around to doing the 2.4 port,
I'll let the list know.
--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer